The left-hand board is for phone. On the backside you can see the traces connecting them all together, so it's a way of having multiple phones share the same line. I would expect your incoming line would be punched down into one slot and then the others would be for the cable runs to phone runs on the wall. Typically the blue pair is used for voice, which equates to the middle pair of conductors in a phone jack. The top three are fully punched down as you say but I expect only the blue pair is actually used.
The good news is you can use any of those blue cables for data - just punch them down on the right-hand side and use a patch cord to make a connection to your switch. You may need to change out the jack on the other end of the run - if it has a RJ11 on it for phone just replace it with a RJ45 for data.
Too bad I'm in Vancouver - looks like a fun job.
Last edited by BloodFetish; 07-31-2013 at 09:34 PM.
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